Cattle dogs are extremely intelligent, love to work hard, and are fiercely loyal. So when Ben, the old hermit who's lived in the bush for years, suddenly vanishes, his blue heeler dog, Sheila, is very agitated, and comes to Animal Haven for help. When the Aussie Angels go back to the farm with her, there's no one round. Can Meg and Mike help Sheila to find old Ben? They spot some new tyre tracks and one of the neighbours has seen a big black Mercedes headed for the farm. So who's been visiting old Ben, and why has he disappeared without a trace?